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Merge branch 'viafb-next' of git://git.lwn.net/linux-2.6
[firefly-linux-kernel-4.4.55.git]
/
Documentation
/
watchdog
/
src
/
watchdog-simple.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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int main(void)
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{
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int fd = open("/dev/watchdog", O_WRONLY);
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int ret = 0;
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if (fd == -1) {
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perror("watchdog");
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exit(EXIT_FAILURE);
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}
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while (1) {
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ret = write(fd, "\0", 1);
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if (ret != 1) {
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ret = -1;
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break;
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}
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sleep(10);
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}
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close(fd);
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return ret;
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}